Motorcycle muffler



FIG. 1 is a perspective view of the motorcycle muffler, shown in position of use from the right side of a motorcycle.

FIG. 2 is an enlarged right side view of the motorcycle muffler.

FIG. 3 is a rear perspective view of the motorcycle muffler shown in FIG. 2; and,

FIG. 4 is a top view of the motorcycle muffler shown in FIG. 2.

The broken line showing of the environment is for illustrative purposes only and forms no part of the claimed design. 

We claim the ornamental design for a motorcycle muffler, as shown and described. 